The Oxford Thesaurus An A-Z Dictionary of Synonyms - idean.

1) concept, conception, construct, thought, notion, plan, design, scheme, suggestion, recommendation: Is that your idea of a good singing voice? Peter has an excellent idea for increasing sales. 2) notion, fancy, impression, picture, (mental) image, concept, conception, perception, understanding, awareness, apprehension, inkling, suspicion, hint, suggestion, approximation, clue, intimation, guess, estimate, estimation, impression: I haven't the slightest idea what you are talking about. Can you give us any idea of the cause of the delay? 3 belief, opinion, sentiment, feeling, teaching(s) , doctrine, tenet, principle, philosophy, view, viewpoint, outlook, notion, conviction, position, stance: Western and Eastern ideas differ as to the role of women in society. 4) aim, goal, purpose, objective, object, end, point, reason, raison d'€tre: What was the idea of telling the teacher? The idea behind the scheme was to boost sales. The idea of the game is to capture your opponent's king. 5) hypothesis, theory, notion, dream, fantasy or phantasy: His invention is based on the idea of an anti-gravity device.